几何阻挫空间中的结构景观
Structural Landscapes in Geometrically Frustrated Smectics
摘要:
提出了一个唯象自由能模型来描述近晶相液晶的行为,近晶相液晶是一种在分子尺度上表现出取向有序和分层的中间相。这些性质使得泛函易于数值模拟。该模型被应用到一些涉及几何挫折的情况下,导致紧急结构,如焦锥域和油性条纹,并使详细阐明这些问题中出现的非常丰富的能源景观。
英文摘要:
A phenomenological free energy model is proposed to describe the behavior of smectic liquid crystals, an intermediate phase that exhibits orientational order and layering at the molecular scale. Advantageous properties render the functional amenable to numerical simulation. The model is applied to a number of scenarios involving geometric frustration, leading to emergent structures such as focal conic domains and oily streaks and enabling detailed elucidation of the very rich energy landscapes that arise in these problems.
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